Session information

Poster

Symbol B (Biogeosciences) » B-PT Paleontology

[B-PT23] Decoding the history of Earth: From Hadean to Modern

Mon. May 25, 2015 6:15 PM - 7:30 PM Convention Hall (2F)

Convener:*Tsuyoshi Komiya(Department of Earth Science & Astronomy Graduate School of Arts and Sciences The University of Tokyo), Yasuhiro Kato(Department of Systems Innovation, Graduate School of Engineering, University of Tokyo), Katsuhiko Suzuki(Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology)

The latest results of Earth's evolution and geological processes through 4.6 billion years from Hadean to Modern, based on various approaches including fieldworks, chemical analyses, experiments and computer simulation, will be presented. In this session, we aim to discuss and understand causal relationships and interplay among the evolution of Earth's deep interior, changes in the surface environments, and development and evolution of life. Wide-ranging topics are accepted.

6:15 PM - 7:30 PM

[BPT23-P01] Reappraisal of geochronology of the Itsaq Gneisses in the Isua area

*Naoki SATO¹, Shinji YAMAMOTO², Shuhei SAKATA³, Takafumi HIRATA³, Tsuyoshi KOMIYA² (1.Department of Earth and Planetary Sciences, the University of Tokyo, 2.Department of Astronomy and Earth Science, the University of Tokyo, Komaba, 3.Division of Earth and Planetary Sciences, Graduate school of Science, Kyoto University)

6:15 PM - 7:30 PM

[BPT23-P02] Microbial activity below Archean seafloor constrained by 4 sulfur isotopes analysis of pyrite in ca. 3.5 Ga basalts from

*Shinnosuke AOYAMA¹, Yuichiro UENO² (1.Tokyo Institute of Technology Earth and Planetary Sciences, 2.Earth Life Scinece Institute)

6:15 PM - 7:30 PM

[BPT23-P03] In-situ iron isotope analysis of pyrites in ~ 3.7 Ga sedimentary protoliths from the Isua supracrustal belt

*Kazumi YOSHIYA¹, Yusuke SAWAKI¹, Takafumi HIRATA², Shigenori MARUYAMA¹, Tsuyoshi KOMIYA³ (1.Tokyo Institute of Technology, 2.Kyoto University, 3.The University of Tokyo)

6:15 PM - 7:30 PM

[BPT23-P04] Compositional diversity of Archaean mantle estimated from Sr and Nd isotopic systematics of basaltic rocks in North Pole

*Ayane SANO¹, Hitomi NAKAMURA², Tsuyoshi KOMIYA³, Tetsuya YOKOYAMA¹, Masaoki UNO⁴, Junichi KIMURA², Qing CHANG², Hikaru IWAMORI² (1.Tokyo Institute of Technology, 2.JAMSTEC, 3.The Uiverstity of Tokyo, 4.Touhoku University)

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